21000296960

素因数分解:

$2^9\times 5^1\times {\mathrm{8203241}}^1$

素因数の和:8203264

約数の個数: 40

約数和(自身を含む): 50351499396

約数和(自身を除く): 29351202436

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8203241, 16406482, 32812964, 41016205, 65625928, 82032410, 131251856, 164064820, 262503712, 328129640, 525007424, 656259280, 1050014848, 1312518560, 2100029696, 2625037120, 4200059392, 5250074240, 10500148480, 21000296960]

約数ペア:

[(1, 21000296960), (2, 10500148480), (4, 5250074240), (5, 4200059392), (8, 2625037120), (10, 2100029696), (16, 1312518560), (20, 1050014848), (32, 656259280), (40, 525007424), (64, 328129640), (80, 262503712), (128, 164064820), (160, 131251856), (256, 82032410), (320, 65625928), (512, 41016205), (640, 32812964), (1280, 16406482), (2560, 8203241)]